User blog comment:Pikazen MC/Permanent Pokemon Stall/@comment-32452525-20180218210208/@comment-30686347-20180219023851

there is no difference. According to Bulbapedia, Mythicals are Event-Only Legendaries. Mythicals are just as strong as legendaries. Maybe the confusion comes from that Mythicals just sound weaker than legendaries. But when i thought that, and saw Volcanion, i thought it was a legendary for sure. I was wrong.

Read here: https://bulbapedia.bulbagarden.net/wiki/Mythical_Pok%C3%A9mon